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2 years ago

What is an electromagnetic wave?

Chemistry

1 answer:

goldenfox [79]2 years ago

5 0

Answer:

An electromagnetic wave is a wave that is created as a result of vibrations between an electric field and a magnetic field.

Explanation:

Hope this helps!!

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What is the molarity of a solution composed of 5.85 g of potassium iodide, KI, dissolved

Troyanec [42]

Answer:

0.282 M

General Formulas and Concepts:

Chemistry - Solutions

Reading a Periodic Table
Using Dimensional Analysis
Molarity = moles of solute / liters of solution

Explanation:

Step 1: Define

5.85 g KI

0.125 L

Step 2: Identify Conversions

Molar Mass of K - 39.10 g/mol

Molar Mass of I - 126.90 g/mol

Molar Mass of KI - 39.10 + 126.90 = 166 g/mol

Step 3: Convert

$5.85 \ g \ KI(\frac{1 \ mol \ KI}{166 \ g \ KI} )$ = 0.035241 mol KI

Step 4: Find Molarity

M = 0.035241 mol KI / 0.125 L

M = 0.281928

Step 5: Check

We are given 3 sig figs. Follow sig fig rules and round.

0.281928 M ≈ 0.282 M

7 0

3 years ago

Small bodies from which the planets formed

Aleks [24]

Small bodies from which the planets are formed is called : Planetesimal.
Planetesimals that have survived to the current day are valuable to scientists since they contain information about the Solar System's formation.

7 0

2 years ago

Read 2 more answers

Convert 52 centigrams to grams. 520 g 0.52 g 5,200 g 5.2 g

PIT_PIT [208]

1 cent ----------> 0.01 g
52 cent ---------> g

g = 52 * 0.01

answer 0.52 g

hope this helps!.

5 0

2 years ago

Will mark as Brainliest.

viktelen [127]

B) Bohr's Atomic Model

8 0

3 years ago

Carbon's atomic number is 6. this means that it has __________ electrons. after completing the first energy level, carbon has __

ser-zykov [4K]

a) 6 electrons - because atomic number is the same as the electron number

b) 4 - because 6-2=4

c) Covalent bonds - it needs 4 more electrons for a full outer shell.

4 0

3 years ago